The technology which is used to modify the appearance, out look comfort ability and fashion of the garments is called garment washing. It began with denim jeans for the following reasons. Enzymes are proteins Bio catalyze. Its has huge life cell. The cell is the basic structural and functional unit of all known living organisms. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life. In this project report briefly focus on Garment Hard Washing; especially focus on the “Bio-polishing’’ affect cotton/Denim.